⚙️ Power Up Your Projects with Precision!
The Pulse Wave Modulator is a robust 4000W SCR electronic voltage regulator designed for versatile applications, including motor speed control and temperature regulation. With a maximum current of 20A and a wide input voltage range of 110V to 220V, this module ensures safe and efficient operation, complete with a built-in cooling fan for optimal performance.
M**S
Does not go to zero
The volt adjuster went out after 5 mins. Never would go to zero.
P**P
Great item
Great item, value for the money
C**R
Works, but not well.
Works, but not well. Starts off at 70 volts, then midway drops to 40 volts, then jumps quickly to 120 volts.
F**S
Nonfunctional unit don’t waste your time
I received it on time but it didn’t work.Don’t waste your time and money for this.
M**T
Not a precise device
Defective potentiometer. Very NON-LINEAR when attempting to dial in required voltage. Does not work to specifications.
M**E
Not great
The sticker on the side says that there is no need to differentiate between hot and neutral for both the input and control signals, but one of two units I ordered had both the input and control neutrals shorted to ground. Luckily I checked before plugging it in and was able to make sure the incoming neutral was the terminal that was shorted and not the incoming hot.The control is pretty awful, but it sort of works. There is no current until about 2/3rds of the way up the dial, then it kind of goes up in unpredictable jumps. If you play with it a bit you can dial in the level you want but it's nowhere near linear.Then, when I was fixing the issue described in the first paragraph, I accidentally touched a ground screw to the hot terminal while testing and blew up the thyristors. So, guess I'll get a new one but I'm not super impressed with it. The mounting holes are also super close to the chassis, making it extremely hard to mount to anything with nuts and bolts.
D**.
Not reliable
Worked only for a few minutes
Trustpilot
1 day ago
3 weeks ago